Liquid crystal display device, method of manufacturing the same, and electronic equipment

Abstract

In a liquid crystal display device for displaying a visible image by controlling the alignment of a liquid crystal disposed between a pair of transparent substrates ( 1 a, 1 b ), a resistance element ( 8, 13, 18, 28, 40 ) for changing a voltage which will be imposed in the liquid crystal is directly formed on the transparent substrate ( 1 a ) by ITO or the like. One or ones of the resistance branches ( 8 a ) of a resistance pattern ( 8 ) are cut off by a laser beam to thereby change the resistance value of the resistance pattern ( 8 ) so that a voltage which will be imposed on the liquid crystal is adjusted. A peripheral circuit including a capacitor and/or the like may be directly formed on the transparent substrate ( 1 a ) in addition to the resistance pattern ( 8 ). The peripheral circuit may be formed to a portion located between the pair of transparent substrates ( 1 a , 1 b ). The shape of the liquid crystal display device as a whole can be reduced by the formation of the resistance element and other peripheral circuit on the substrate of a liquid crystal panel.

1. A liquid crystal display device for displaying a visible image by controlling an alignment of a liquid crystal disposed between a pair of substrates by imposing a drive voltage on the liquid crystal through at least one electrode, comprising:
 a driving integrated circuit (IC) mounted on one of the pair of substrates, the driving integrated circuit operable to supply the drive voltage to the at least one electrode; and  
 a resistance element disposed on at least one of the pair of substrates, and electrically connected to the driving IC, wherein a resistance value of said resistance element is capable of being set by partially removing the material of the resistance element, wherein an input voltage for operating the driving IC is capable of being varied depending on the resistance value of the resistance element and the drive voltage is capable of being varied depending on the value of the input voltage.  
 
   
   
     2. A liquid crystal display device according to  claim 1 , wherein said resistance element is formed by ITO (indium tin oxide). 
   
   
     3. The liquid crystal display device of  claim 1  wherein the resistance element having the same material as that of the at lease one electrode and formed to a prescribed pattern. 
   
   
     4. A method of manufacturing a liquid crystal display device for displaying a visible image by controlling an alignment of a liquid crystal disposed between a pair of substrates by imposing a drive voltage on the liquid crystal through at least one electrode, wherein the method is comprised of the following steps of:
 mounting a driving integrated circuit (IC) on at least one of the pair of substrates, the driving IC operable to supply the drive voltage to the at least one electrode;  
 forming a resistance element on at least one of the pair of substrates, the resistance element being electrically connected to the driving IC, and  
 partially removing the material of the resistance element so as to adjust a resistance value of the resistance element so as to adjust an input voltage for operating the driving IC, wherein the drive voltage is varied based on the value of the input voltage.  
 
   
   
     5. The liquid crystal display device of  claim 4  wherein the resistance element having the same material as that of the at lease one electrode and formed to a prescribed pattern. 
   
   
     6. A liquid crystal display device comprising:
 a first substrate;  
 a second substrate opposite said first substrate;  
 a liquid crystal disposed between said first and second substrates;  
 a plurality of electrodes disposed on at least one of the substrates,  
 
     wherein a drive voltage imposed on the liquid crystal through at least one of the plurality of electrodes;
 a driving integrated circuit (IC) mounted on at least one of the substrates and operable to supply the drive voltage to the at least one of the plurality of electrodes; and  
 a resistance element, disposed on one of said first and second substrates, and electrically connected to the driving IC, wherein a resistance value of said resistance element is capable of being set by partially removing the material of the resistance element, wherein an input voltage for operating the driving IC is capable of being varied depending on the resistance value of the resistance element and the drive voltage is capable of being varied depending on the value of the input voltage.  
 
   
   
     7. The liquid crystal display device of  claim 6  further comprising: a plurality of electrodes formed on said first and second substrates, said electrodes being formed of the same material as said resistance element. 
   
   
     8. The liquid crystal display device of  claim 6  wherein said adjustable resistance value of said resistance element is controlled by a pattern of said resistance element. 
   
   
     9. The liquid crystal display device of  claim 6  further comprising a seal formed between said first and second substrates. 
   
   
     10. The liquid crystal display device of  claim 9  further comprising a peripheral circuit disposed between said first and second substrates outboard of said seal. 
   
   
     11. The liquid crystal display device of  claim 10  further comprising a second seal formed between said first and second substrates outboard of said peripheral circuit. 
   
   
     12. The liquid crystal display device of  claim 10  wherein said peripheral circuit includes at least one of a resistance element and a capacitor. 
   
   
     13. The liquid crystal display device of  claim 6  wherein the resistance element having the same material as that of the at lease one electrode and formed to a prescribed pattern. 
   
   
     14. A liquid crystal display device for displaying a visible image, comprising:
 a first substrate;  
 a second substrate opposite said first substrate;  
 a liquid crystal disposed between said first and second substrates;  
 a plurality of electrodes disposed on at least one of the substrates,  
 
     wherein a drive voltage is imposed on the liquid crystal through at least one of the plurality of electrodes;
 a driving integrated circuit (IC) mounted on one of the substrates and operable to supply the drive voltage to the at least one of the plurality of electrodes; and  
 a resistance element disposed on at least one of said first and second substrates, and electrically connected to the driving IC, wherein a the resistance value of said resistance element is capable of being set by partially removing the material of the resistance element, wherein an input voltage for operating the driving IC is capable of being varied depending on the resistance value of the resistance element and the drive voltage is capable of being varied depending on the value of the input voltage, thereby changing the voltage applied to the liquid crystal.  
 
   
   
     15. The liquid crystal display device of  claim 14  wherein said liquid crystal is connected by said plurality of electrodes to said liquid crystal driving IC. 
   
   
     16. The liquid crystal display device of  claim 14  wherein said resistance element connected to one or more input terminals of said liquid crystal driving IC and said plurality of electrodes connected to a plurality of output terminals of said liquid crystal driving IC. 
   
   
     17. The liquid crystal display device of  claim 14  wherein said adjustable resistance value of said resistance element is controlled by a pattern of said resistance element. 
   
   
     18. The liquid crystal display device of  claim 14 , further comprising a seal formed between said first and second substrates. 
   
   
     19. The liquid crystal display device of  claim 14  wherein the resistance element having the same material as that of the at lease one electrode and formed to a prescribed pattern. 
   
   
     20. A liquid crystal display device for displaying a visible image, comprising:
 a first substrate;  
 a second substrate opposite said first substrate;  
 a liquid crystal disposed between said first and second substrates;  
 a liquid crystal driving integrated circuit (IC) mounted on one of the first and second substrates and operable to impose voltage on said liquid crystal; and  
 a capacitor located between the first and second substrates, connected to said liquid crystal driving IC for stabilizing the voltage imposed on said liquid crystal.  
 
   
   
     21. A liquid crystal display device for displaying a visible image, comprising:
 a first substrate;  
 a second substrate opposite said first substrate;  
 a liquid crystal disposed between said first and second substrates;  
 a liquid crystal driving integrated circuit (IC) mounted on one of the first and second substrates and operable to impose voltage on said liquid crystal; and  
 a capacitor located between the first and second substrates, connected to said liquid crystal driving IC for generating voltages imposed on the liquid crystal.  
 
   
   
     22. A display device comprising;
 a substrate;  
 a driving IC, mounted on the substrate, for driving the display device; and  
 a resistance element disposed on the substrate and electrically connected to the driving IC, wherein a resistance value of said resistance element is capable of being set by partially removing the material of the resistance element, wherein a voltage for operating the IC is varied depending on the resistance value of the resistance element.  
 
   
   
     23. The liquid crystal display device of  claim 22  wherein the resistance element having the same material as that of the at lease one electrode and formed to a prescribed pattern. 
   
   
     24. A liquid crystal display device for displaying a visible image by controlling an alignment of a liquid crystal disposed between a pair of substrates by imposing a drive voltage on the liquid crystal through at least one electrode, comprising:
 a driving integrated circuit (IC) mounted on one of the pair of substrates, the driving integrated circuit operable to supply the drive voltage to the at least one electrode; and  
 a resistance element having an adjustable resistance value, disposed between the pair of substrates and disposed on at least one of the pair of substrates, and electrically connected to the driving IC, wherein an input voltage for operating the driving IC is capable of being varied depending on the resistance value of the resistance element and the drive voltage is capable of being varied depending on the value of the input voltage.  
 
   
   
     25. A method of manufacturing a liquid crystal display device for displaying a visible image by controlling an alignment of a liquid crystal disposed between a pair of substrates by imposing a drive voltage on the liquid crystal through at least one electrode, wherein the method is comprised of the following steps of:
 mounting a driving integrated circuit (IC) on at least one of the pair of substrates, the driving IC operable to supply the drive voltage to the at least one electrode;  
 disposing a resistance element having an adjustable resistance value on at least one of the pair of substrates, the resistance element being electrically connected to the driving IC, the resistance element disposed between the pair of substrates; and  
 adjusting the resistance value of the resistance element so as to adjust an input voltage for operating the driving IC, wherein the drive voltage is varied depending on the value of the input voltage.  
 
   
   
     26. A liquid crystal display device for displaying a visible image comprising:
 a first substrate;  
 a second substrate opposite the first substrate;  
 a driving integrated circuit (IC) mounted on one of the first and second substrates and operable to impose a drive voltage on a liquid crystal;  
 a resistance element disposed on one of the first and second substrates and electrically connected to the driving IC, the resistance value of the resistance element being capable of being set by partially removing material of the resistance element, the drive voltage imposed on the liquid crystal by the driving IC being set depending on the resistance value of the resistance element.